S 414-022
(11)
Install the actuator for the air inlet door (Ref 49-15-04/401).
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747-400 MAINTENANCE MANUAL
AIR INLET DOOR - INSPECTION/CHECK
_________________________________
1. General_______
A. This procedure contains two tasks. The first task does a check of the hinges for the air inlet door. The second task does a check of the air inlet door.
B. The air inlet door is on the right side of the fuselage between the horizontal and the vertical stabilizer.
C. You can get access to the air inlet door from the outer side of the fuselage.
TASK 49-15-03-226-001
2. Air Inlet Door Hinge Inspection (Fig. 601)_______________________________
A. References
(1)
49-15-03/401, Air Inlet Door
(2)
IPC 49-15-51 Fig. 1
B.
Access
(1)
Location Zone 318 APU Compartment-Upper Inner and Outer Side, RH
(2)
Access Panel
317AL APU Access Door
318AR APU Access Door
C.
Procedure
S 016-002
(1)
Remove the air inlet door (Ref 49-15-03/401).
S 226-003
(2)
Examine the hinges on the air inlet door to make sure they are in
the limits that follow: ~............................................................................... | | | | DESIGN LIMITS | WEAR LIMITS | | | | | | | ................................. | | | | | | | | | MAX | | | | | | | | DIAMETER | MAX | DIAM | REPLACE | REPAIR | | |INDEX| PART | ................. WEAR | CLEAR.| WORN | WORN | REPAIR | | NO. | NAME | DIM.| MIN | MAX | DIM. | ANCE | PART | PART | INSTR. | ................................................................................. | | HINGE | ID | 0.129 | 0.1305| 0.135 | | X | | | | 1 ....................................... 0.015 ............................. | | PIN | OD | 0.122 | 0.128 | 0.120 | | X | | | 2.....….......….....….......….......….......….......….........…........…........1
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747-400 MAINTENANCE MANUAL
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SEE A
A
(1.27 3.05 0.050 0.120 mm) INCH MAXIMUM |0.060 INCH (1.524 mm)
AIRPLANE OML
AIR INLET DOOR (CLOSED POSITION) A-A SEAL LIP
DOOR AIR INLET
SEE B PIN
SEE B 1 HINGE
A B
Figure 601 Air Inlet Door Wear Limits
F58291
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747-400
MAINTENANCE MANUAL
DISTANCE ABOVE SHIM
FUSELAGE CONTOUR THICKNESS
0.12 ---
0.14 0.012
0.16 0.024
0.18 0.035
0.20 0.047
0.25 0.078
0.30 0.106
DIMENSIONS IN INCHES
Air Inlet Door Adjustment Shim
Figure 602
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747-400 MAINTENANCE MANUAL
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